| Most common failures | No# failures |
|---|
| Parking brake: efficiency below requirements |3.7.B.7| | 17 |
| Brakes imbalanced across an axle | 16 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 12 |
| Offside Stop lamp not working |1.2.1b| | 10 |
| Headlamp aim out of alignment | 10 |
| Rear parking brake recording little or no effort | 9 |
| Nearside Stop lamp not working |1.2.1b| | 9 |
| Service brake: efficiency below requirements |3.7.B.7| | 9 |
| Horn not working |1.6.2a| | 8 |
| Service brake: efficiency below requirements |3.7.C.1a| | 7 |
| Steering box has relative movement between sector shaft and the drop arm |2.2.B.1b| | 6 |
| Service brake is causing the vehicle to swerve to the offside |3.7.C.2| | 6 |
| Stop lamp remains on when the brakes are released | 6 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 6 |
| Offside front brake recording little or no effort |3.7.B.5a| | 6 |
| Nearside front brake recording little or no effort |3.7.B.5a| | 6 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 5 |
| Registration plate lamp issues | 5 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 5 |
| Nearside Semaphore indicator arm does not extend smoothly |1.4.C.1a| | 4 |
| Front brake application uneven | 4 |
| Driver`s seat insecure |6.2.A.1| | 4 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 4 |
| Fuel cap/sealing device sealing washer missing |7.2.4c| | 4 |
| Nearside Front Leaf spring has excessive wear in a shackle pin and/or bush |2.4.B.2| | 3 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 3 |
| Steering system has excessive free play detected at the steering wheel |steering box fitted| |2.2.A.1a| | 3 |
| Rear brake application uneven | 3 |
| Rear Stop lamp not working |1.2.1b| | 3 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 3 |
| Fuel tank leaking |7.2.3| | 3 |
| Offside Semaphore indicator arm does not extend smoothly |1.4.C.1a| | 3 |
| Parking brake lever releases when knocked |3.1.6a| | 3 |
| Offside Rear Road wheel spoke excessively loose |4.2.A.1b| | 2 |
| Offside Rear Shock absorber has an excessively worn linkage |2.7.4| | 2 |
| Offside Front Leaf spring has excessive wear in a shackle pin and/or bush |2.4.B.2| | 2 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 2 |
| Windscreen wiper does not clear the windscreen effectively | 2 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 2 |
| Brake performance not tested |3.7.A.1| | 2 |
| Nearside Rear Leaf spring has excessive wear in a shackle pin and/or bush |2.4.B.2| | 2 |
| Offside Rear Leaf spring has excessive wear in a shackle pin and/or bush |2.4.B.2| | 2 |
| Mechanical brake component has restricted free movement | 2 |
| Nearside Rear Braking system leaking |3.6.A.1| | 2 |
| Nearside Front Steering pivot point has excessive play |2.2.B.1g| | 2 |
| Offside Front Steering pivot point has excessive play |2.2.B.1g| | 2 |
| Offside Rear Stop lamp not working |1.2.1b| | 2 |
| Offside Stub axle has excessive vertical movement between stub axle and axle beam |2.5.A.1a| | 2 |
| Nearside Track rod end ball joint has excessive play |2.2.B.1f| | 2 |
| Offside Front front brake binding |3.7.B.1| | 2 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 2 |
| Horn not loud enough to be heard by another road user |1.6.2b| | 2 |
| Offside Front Steering arm has relative movement at its fixings |2.2.B.1h| | 2 |
| Fuel hose leaking |7.2.3| | 2 |
| Rear brake binding | 2 |
| Dipswitch operation does not deflect all main beam headlamps to make them dipped beams |1.7.4b| | 1 |
| Offside Service brake is causing the steering wheel to severely pull one way |3.7.C.2| | 1 |
| Nearside Front Road wheel spoke excessively loose |4.2.A.1b| | 1 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 1 |
| Offside Front Headlamp not working on main beam |1.7.5a| | 1 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 1 |
| Brake master cylinder leaking hydraulic fluid |3.6.G.1f| | 1 |
| Front Steering component deformed and unserviceable |2.2.C.1d| | 1 |
| Front Trikes, quads or pre-68 vehicles, service brake imbalanced across an axle |3.7.B.5b| | 1 |
| Trikes, quads or pre-68 vehicles, service brake efficiency below requirements |3.7.B.7| | 1 |
| Nearside Indicator tell tale inoperative |1.4.A.2a| | 1 |
| Offside Windscreen wiper not operating automatically when switched on |8.2.1b| | 1 |
| Rear position lamp|s| incorrect colour |1.1.A.3e| | 1 |
| Stop lamp emits other than a steady red light |1.2.1e| | 1 |
| Offside Front Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Nearside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Offside Brake master cylinder/servo mounting prescribed area is excessively corroded |3.6.C.3| | 1 |
| Offside Brake master cylinder/servo mounting prescribed area is inadequately repaired |3.6.C.3| | 1 |
| Steering system excessively tight |2.2.D.1| | 1 |
| Front Brake pedal does not operate a brake fitted to each wheel |3.3.A.3| | 1 |
| Fuel pipe excessively damaged |7.2.2| | 1 |
| Nearside Front Passenger`s seat insecure |6.2.A.1| | 1 |
| Nearside Front engine mounting deteriorated resulting in excessive movement |6.1.D.1a| | 1 |
| Steering wheel retaining device insecure |2.1.6| | 1 |
| Battery insecure |1.9.1| | 1 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 1 |
| Offside Front wheel bearing has excessive play |2.5.A.3c| | 1 |
| Headlamp switch faulty |1.7.1| | 1 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Nearside Front wheel bearing rough when rotated |2.5.A.2| | 1 |
| Offside Front Brake hose leaking |3.6.A.1| | 1 |
| Nearside Rear Brake hose leaking |3.6.A.1| | 1 |
| Brake pipe leaking |3.6.A.1| | 1 |
| Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Semaphore indicator switch faulty |1.4.C.1c| | 1 |
| Intermediate drop arm insecure |2.2.B.1a| | 1 |
| Rear rear brake recording little or no effort |3.7.B.5a| | 1 |
| Nearside Front Semaphore indicator arm does not extend smoothly |1.4.C.1a| | 1 |
| Nearside Front Semaphore indicator arm does not retract smoothly |1.4.C.1a| | 1 |
| Nearside Rear Stop lamp not working |1.2.1b| | 1 |
| Nearside Front Front passenger door cannot be opened from inside the vehicle |6.2.B.1b| | 1 |
| Nearside Front Front passenger door cannot be opened from outside the vehicle |6.2.B.1b| | 1 |
| Offside Rear Brake cable locking device insecure |3.5.1l| | 1 |
| Nearside Front Shock absorber has negligible damping effect |2.7.5| | 1 |
| Nearside Rear Shock absorber has an excessively worn linkage |2.7.4| | 1 |
| Nearside Front Front suspension locking device ineffective |2.5.A.4| | 1 |
| Offside Front Front suspension locking device ineffective |2.5.A.4| | 1 |
| Steering column top mounting bracket insecure |2.1.2d| | 1 |
| Offside Rear brake drum contaminated by oil |3.5.1h| | 1 |
| Offside Front Suspension spring mounting prescribed area is fractured |2.4.A.3| | 1 |
| Nearside Front Leaf spring anchor bracket loose |2.4.B.6a| | 1 |
| Nearside Rear Shock absorber insecure |2.7.2b| | 1 |
| Offside Rear Shock absorber insecure |2.7.2b| | 1 |
| Service brake is causing the steering wheel to severely pull one way |3.7.C.2| | 1 |
| Nearside Front Brake hose leaking |3.6.A.1| | 1 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 1 |
| Parking brake lever defective so that it cannot be satisfactorily operated |3.1.3c| | 1 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 1 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 1 |
| Nearside Stub axle has excessive vertical movement between stub axle and axle beam |2.5.A.1a| | 1 |
| Semaphore indicator tell tale missing |1.4.C.2| | 1 |
| Brake hose has insufficient room to move | 1 |
| Front Obligatory mirror missing |8.1.1| | 1 |
| Nearside Front Axle swivel joint has excessive play in a swivel pin |2.5.A.3b| | 1 |
| Offside Front Axle swivel joint has excessive play in a swivel pin |2.5.A.3b| | 1 |
| Nearside Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 1 |
| Offside Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 1 |
| Nearside Headlamp excessively damaged so that the light output is severely reduced |1.7.5a| | 1 |
| Registration plate issues | 1 |
| Nearside Front Leaf spring shackle bracket loose |2.4.B.6a| | 1 |
| Offside Front Leaf spring shackle bracket loose |2.4.B.6a| | 1 |
| Nearside Front Leaf spring shackle pin excessively loose in its bracket |2.4.B.3a| | 1 |
| Offside Front Leaf spring shackle pin excessively loose in its bracket |2.4.B.3a| | 1 |
| Offside Rear Road wheel spoke cracked |4.2.A.1b| | 1 |
| Offside Front Shock absorber insecure |2.7.2b| | 1 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 1 |
| Front Windscreen wiper blade missing |8.2.2| | 1 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 1 |
| Ball joint has excessive play |2.2.B.1f| | 1 |
| Rear Mechanical brake component has restricted free movement | 1 |
| Steering box damaged and unserviceable |2.2.C.1d| | 1 |
| Wheel nut|s| missing |4.2.A.1e| | 1 |
| Offside Headlamp excessively damaged so that the light output is severely reduced |1.7.5a| | 1 |
| Mechanical brake component securing device loose |3.5.1i| | 1 |
| Nearside Front Axle king pin has excessive play in pin and/or bush adversely affecting the steering |2.5.A.3a| | 1 |
| Offside Front Leaf spring fractured |2.4.B.1a| | 1 |
| Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Nearside Front Axle king pin is loose in the axle beam |2.5.A.3a| | 1 |
| Offside Front Axle king pin is loose in the axle beam |2.5.A.3a| | 1 |
| Nearside Rear wheel bearing has excessive play |2.6.2| | 1 |
| Drag link end loose |2.2.B.1d| | 1 |
| Brake pivot locking device insecure |3.5.1l| | 1 |
| Steering locking device missing |2.2.C.1g| | 1 |
| Nearside Passenger`s seat insecure |6.2.A.1| | 1 |
| Hydraulic brake cylinder leaking hydraulic fluid |3.6.A.1| | 1 |
| Brake linkage has restricted free movement |3.5.1k| | 1 |
| Front passenger seat insecure |6.2.3| | 1 |
| Front Service brake is causing the vehicle to swerve to the nearside |3.7.C.2| | 1 |
| Nearside Front front brake binding |3.7.B.1| | 1 |
| Offside Headlamp not working on main beam |1.7.5a| | 1 |
| Nearside Headlamp not working on main beam |1.7.5a| | 1 |
| Nearside front brake binding |3.7.B.1| | 1 |
| Centre Exhaust system not adequately supported |7.1.1| | 1 |
| Brake cable has wires broken and is significantly weakened |3.5.1b| | 1 |
| Brake hose damaged | 1 |
| Nearside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 1 |
| Offside Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 1 |
| Body insecure and dangerous to other road users |6.1.B.1b| | 1 |
| Drag link end ball joint has excessive play |2.2.B.1f| | 1 |
| Nearside Front Leaf spring has excessive side play at eye |anchor| |2.4.B.4| | 1 |
| Offside Front Leaf spring has excessive side play at eye |shackle| |2.4.B.4| | 1 |
| Nearside Parking brake lever, pawl mechanism pivot|s| or their associated mountings locking device insecure |3.1.4b| | 1 |
| Parking brake lever has no reserve travel |3.1.6b| | 1 |
| Offside Steering arm has relative movement at its fixings |2.2.B.1h| | 1 |
| Stop lamp not working |1.2.1b| | 1 |
| Nearside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 1 |
| Offside Headlamp insecure |1.7.3| | 1 |
| Nearside Front Brake pipe inadequately clipped |3.6.B.1| | 1 |
| Offside Front Brake pipe inadequately clipped |3.6.B.1| | 1 |
| Offside Front Leaf spring has excessive side play at eye |anchor| |2.4.B.4| | 1 |
| Offside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Steering box insecure |2.2.B.1a| | 1 |
| Exhaust system not adequately supported |7.1.1| | 1 |